src/hotspot/share/code/codeBehaviours.hpp
author eosterlund
Thu, 01 Nov 2018 14:57:26 +0100
changeset 52384 d6dc479bcdd3
permissions -rw-r--r--
8212681: Refactor IC locking to use a fine grained CompiledICLocker Reviewed-by: coleenp, rehn, kvn

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#ifndef SHARE_CODE_CODEBEHAVIOURS_HPP
#define SHARE_CODE_CODEBEHAVIOURS_HPP

#include "memory/allocation.hpp"

class CompiledMethod;

class CompiledICProtectionBehaviour {
  static CompiledICProtectionBehaviour* _current;

public:
  virtual bool lock(CompiledMethod* method) = 0;
  virtual void unlock(CompiledMethod* method) = 0;
  virtual bool is_safe(CompiledMethod* method) = 0;

  static CompiledICProtectionBehaviour* current() { return _current; }
  static void set_current(CompiledICProtectionBehaviour* current) { _current = current; }
};

class DefaultICProtectionBehaviour: public CompiledICProtectionBehaviour, public CHeapObj<mtInternal> {
  virtual bool lock(CompiledMethod* method);
  virtual void unlock(CompiledMethod* method);
  virtual bool is_safe(CompiledMethod* method);
};

#endif // SHARE_CODE_CODEBEHAVIOURS_HPP